NCHS is the principal health statistics agency of the United States. Statistical information is collected on all aspects of health in the U.S. including particular health conditions (heart disease, diabetes, asthma), health care and insurance, injuries and accidents, life-stages (birth, children's health, older americans, mortality, etc.), and lifestyle (marriage/divorce, smoking, exercise, etc.). See the FastStats Statistics by Topic A-Z to get a quick list on all of these topics and more. F